Process of and apparatus for charging liquids with gases



(No Model.) v

G. SGHPNCK.

PROCESS OP AND APPARATUS POR GHARGING' LIQUIDS WITH GASES. No. 363,173hPatented May L7, 1887.

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PEYERS, PlmwLiwgnphanwashingiw. D4 C.

UNITED STATES i FFlQE@ PATENT GARRET SCHENCK, OF BANGOR, MANE.

SPECIFICATION forming part of Letters Patent No. 363,173, dated May 1'7,1887'.

Application filed September 11, 1886.` Serial N0.l13,303. (No model.)

To all whom it may concern.-

Be it known that I, GAERET Sol-IENOK, a citizen of the United States,residing at Bangor, in the county of Penobscot and State of Maine, haveinvented a new and useful Process of and Device for Charging Liquidswith Gases; and I do hereby declare that the following is a full, clear,and exact description of the invention, which will enable others skilledin the art to which it apperiains to make and use the same.

My invention relates to an improved process for the manufacture ofbisulphites and generally of impregnating liquors with gases, and animproved devi-ce for carrying such process into effect, and isillustrated in the accompanying drawings, in which-- Figure l is avertical section of tanks in battery with elevation of connections andworking parts. Fig. 2 is a horizontal section of tank with plan ofperforated pipe. Fig. 3 is a perspective view of dasher. Fig. f1 is aperspective View ofstep. Fig. 5 is a 'horizontal section of tank withplan of perforated pipe, receiver, and radial tubes.

Similar letters refer to corresponding paris throughout the figures.

The process for use in which my apparatus is designed consists inintroducing gases (as fumes of sulphur) at the bottom of a tankpartially iilled with the liquor to be treatedas, for instance,asolution of lime. The fumes impregnate the liquor as they rise throughit and the residuum of the fumes collecting in the top of the tank isconducted to the bottom of a second tank partially filled `with liquorlike the iirst, where the operation is repeated. As many tanks may beused in battery as desired, and the ual residuum of the fumes is drawnfrom the top of the last tank by an eX- haust or suction. Further, tofacilitate the operation, systems of piping are applied connecting thetanks, whereby the liquor can be drawn at will from an upper to a lowertank.

The object of my invention is to provide a process and apparatus wherebyliquors may be charged with gases and bisulphites may be more rapidlyand economically produced than by existing devices for the purpose, andwith it 1 believe that abattery of two tanks is sufficient to effect mypurpose, although in Fig. l I show a battery of three tanks. -Vt7hen twoonly are used, the intermediate tank, A, is disn pensed with.

The tanks A', A, and A may be of any convenient forni; but arepreferably cylindrical. If square, the corners should be filled, asshown in the figures, in order that as little of the liquor as possiblemay escape the operas tion of the dasher.

B is a supply-pipe for Conducting the sulphur V'fumes from the furnaceto the lower tank, A. It enters the bottom of the tank preferably by aU-shaped branch having its mouths b b on either side of a narrow step,a', fixed at the center of the inside of the bottom of said tank, and,together with a bearing, s, in the center of the top of said tank,carrying the shaft C', terminating above said tank in a gearwheel, c',through which power is taken from any convenient source. The shaftcarries a dasher, D', of any suitable construction, and near its base aninverted cup or receiver, Ff, of such diameter as to extend over themouths b b of the supply-pipe B. This receiver is preferably conical orsemispherical in shape; but neither form is absolutely essential. Fromthe top of the cup are radially-proj ecting tubes F', with open externalends and preferably perforated, as shown, communicating with theinteriorof said receiver and preferably of graduated lengths and sizes,the longest tube being the largest in diameter. tank A' a goose-neckescape-pipe, 13, after rising to a height above the top of the secondtank, A, descends, and by a U -shaped bran ch enters the bottoni of thetank A.

f By any convenient system of pipes,X,suitably arranged to draw from thetank A at different points, as x and y, and fitted with necessary valvesand cocks, the liquor is drawn from the tank A into the top of the tankA, within which the part G of the piping is perforated and prolonged,preferably in the form of a coil, and the liquor t-hus drawn into thetank A through the perforations of the coil in the form of a spray.

Vhen three tanks are used, as in Fig. 1 the second tank, A,is itted inprecisely the same manner as the tank A', with shaft and gearwheel,dasher, recei ver, perforated radial tubes, perforated coil, andgoose-neck, such coil and goose-neck communicating with the third tank,A.` The tank Amis connected with the From the top of the tank A'l by asystem of pipes,X"', with necessary valves and cocks similar to thatconnect ing the tanks A" and A', and is tted with shaft and geargwheel,dasher, receiver, and perforated radial tubes, but is without aperforated coil, and at its top is provided with an exhaust-pipe, H',which communicates with the chimney or any exhaust.

In operation each of the tanks is partially filled with liquor, asindicated in Fig. 1, and preferably through the upper tank, A. Thedashers F' F" F are operated, and theliquor in all the tanks thoroughlyagitated. The sul-V phur fumes are admitted through the pipeB into thereceiver E' at the bottom of the tank A', from whence they pass into thetubes F', which are revolving with the shaft C', and, es-

. caping through the ends or perforations in the an exhaust.

tubes F', rise through the liquor intothe unoccupied top of the tank,and from thence escape through the goose-neck B" into the tank A", wherethe operation which has been performed in the tank A' is repeated. Fromthe tank A the fumes pass intol the tank VA',and, passing through theliquor therein under the same conditions as in tanks A and A, finallyescape through the pipe H, connected with Simultaneously with thisoperation the liquor may be drawn from either or 'both the tanks A or A"to the tank or tanks below, and is in each case discharged into the tankwhich receives it through the perforated coils G" and G,whence itfalls'in spray through the fumes rising in the top of the'tank above theliquor therein contained.

It will be observed that by my invention the fumes are introduced intothe liquor, while the latter is in a state of violent agitation, insmall jets and at a great number of points through the ends orperfor-ationsv in the tubes F F" F', that, furthermore, as these tubesare continually revolving, the discharge of the .fumes is very equallydistributed throughout almost every portion of the lower part of theliquor, and that a most perfect commingling of the fumes with the liquoris thus obtained.

It'should also be noticed that the liquor may be drawn from an upper toa lower tank, and, discharging therein in spray, falls through the fumesin the top of the lower tank,by which it is still further impregnated,while, as usual in such processes, the fumes are used repeatedly untiltheir virtue is exhausted.

The manufacture of the bisulphites is first completed in the lower tank,A', and as the contents thereof or any part of them become of sufficientstrength they are drawn off by a system of pipes, X', and replaced fromthe weaker contents of the tank above, which in turn is replenished fromthe next above it.

It is evident that my process and apparatus may be used generally forcharging liquors with gases, and that their application is notrestricted to the manufacture of bisulphites.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s

l. The herein-deseribed process of charging liquors with gases,consisting of forcing the gases into the liquor in a tank through tubesarranged to revolve in said tank beneath the surface of theliquor andsimultaneously drawing the liquor from an upper to a lower tank anddischarging the liquor in spray or jets into the lower tank above theliquor therein, so that the spray may fall through the gases collectedin the top of the lower tank, substantially as described. y

2. In an apparatus for charging liquors with gases or for themanufacture of bisulphites, and in combination with a tank and a tubedelivering gases therein, an inverted cup or receiver so located andfixed upon a shaft revolving within said tank and operated by power fromwithout as to revolve with said shaft and receive the gases delivered bysaid tube, and radially-projecting tubes with open external ends rigidlyfixed to said receiver, communicating with the interior thereof andrevolving therewith, substantially as described.

3. In an apparatus for charging liquors with gases or for themanufacture of bisulphites, and in combination with atank and a tubedelivering gases therein, an inverted cup or receiver so located andfixed upon a shaft revolving within said tank and operated by power fromwithout as to revolve with said shaft and receive the gases delivered bysaid tube, and radially-proj ecting'perforated tubes with open externalend s, rigidly fixed to said receiver,

IOO

communicating with the interior thereof andrevelvingtherewith,substantiallyasdescribed.

4. In an apparatus for charging liquors with gases or for themanufacture of bisulphites, having two or more tanks connected bysystems of pipes, whereby the gases and liquors may .pass or be drawnfrom tank to tank in opposite directions, a liquor discharging pipeconnecting an upper with a lower tank and prolonged within saidA lowertank, near its top, in any convenient direction, the part within IIOsaid lower tank being formed with perforations, substantially asdescribed.y

5. The herein-described device for impregnating liquors with gases orfor manufacturing bisulphites, consisting of the combination yof thetank A', gas-supplying pipe B', shaft C', with gear c', dasher D',receiver E', and radial tubes F', substantially as described.

GARRET SGHENCK.

Witnesses:

W. H. HARLOW, W. LONG.

